GGDEMO.CPE: Looks like Mode 7 demo works, and more levels/music: LEVEL 7 - HYDRO PLANT, DISNEY LOGO, CLOCK TOWER

GG.TXT: I recovered the source code and available data. Made dummy files for most of the .chr and .map data. twelve code files .658, 81.7 KB

GGTTL.MAP copied from the protos we have, same size, 512 bytes. May be the same. (orig made one in dummy\)